From: Vernon Yang <vernon2gm@gmail.com>
To: akpm@linux-foundation.org, david@kernel.org
Cc: lorenzo.stoakes@oracle.com, ziy@nvidia.com, dev.jain@arm.com,
baohua@kernel.org, lance.yang@linux.dev,
richard.weiyang@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Vernon Yang <yanglincheng@kylinos.cn>
Subject: [PATCH v3 6/6] mm: khugepaged: set to next mm direct when mm has MMF_DISABLE_THP_COMPLETELY
Date: Sun, 4 Jan 2026 13:41:12 +0800 [thread overview]
Message-ID: <20260104054112.4541-7-yanglincheng@kylinos.cn> (raw)
In-Reply-To: <20260104054112.4541-1-yanglincheng@kylinos.cn>
When an mm with the MMF_DISABLE_THP_COMPLETELY flag is detected during
scanning, directly set khugepaged_scan.mm_slot to the next mm_slot,
reduce redundant operation.
Signed-off-by: Vernon Yang <yanglincheng@kylinos.cn>
---
mm/khugepaged.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 1ca034a5f653..d4ed0f397335 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2541,7 +2541,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages, int *result,
* Release the current mm_slot if this mm is about to die, or
* if we scanned all vmas of this mm.
*/
- if (hpage_collapse_test_exit(mm) || !vma) {
+ if (hpage_collapse_test_exit_or_disable(mm) || !vma) {
/*
* Make sure that if mm_users is reaching zero while
* khugepaged runs here, khugepaged_exit will find
--
2.51.0
next prev parent reply other threads:[~2026-01-04 5:42 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-04 5:41 [PATCH v3 0/6] Improve khugepaged scan logic Vernon Yang
2026-01-04 5:41 ` [PATCH v3 1/6] mm: khugepaged: add trace_mm_khugepaged_scan event Vernon Yang
2026-01-04 5:41 ` [PATCH v3 2/6] mm: khugepaged: refine scan progress number Vernon Yang
2026-01-05 16:49 ` David Hildenbrand (Red Hat)
2026-01-06 5:55 ` Vernon Yang
2026-01-04 5:41 ` [PATCH v3 3/6] mm: khugepaged: just skip when the memory has been collapsed Vernon Yang
2026-01-04 5:41 ` [PATCH v3 4/6] mm: add folio_is_lazyfree helper Vernon Yang
2026-01-04 11:42 ` Lance Yang
2026-01-05 2:09 ` Vernon Yang
2026-01-04 5:41 ` [PATCH v3 5/6] mm: khugepaged: skip lazy-free folios at scanning Vernon Yang
2026-01-04 12:10 ` Lance Yang
2026-01-05 1:48 ` Vernon Yang
2026-01-05 2:51 ` Lance Yang
2026-01-05 3:12 ` Vernon Yang
2026-01-05 3:35 ` Lance Yang
2026-01-05 12:30 ` Vernon Yang
2026-01-06 10:33 ` Barry Song
2026-01-07 8:36 ` Vernon Yang
2026-01-04 5:41 ` Vernon Yang [this message]
2026-01-04 12:20 ` [PATCH v3 6/6] mm: khugepaged: set to next mm direct when mm has MMF_DISABLE_THP_COMPLETELY Lance Yang
2026-01-05 0:31 ` Wei Yang
2026-01-05 2:09 ` Lance Yang
2026-01-05 2:06 ` Vernon Yang
2026-01-05 2:20 ` Lance Yang
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